Question

1.state the relative density of water
2.name the device which is used to determine the density of liquids
3.Relate and state Archimedes principle to density of water

please answer the above questions please

Answer 1

1. Relative density of a substance is a number of times the given substance is heavier than the equal volume of a water.
Relative density =Density of substance/ Density of water at 4°Christmas
2.Hydrometer is the device is used to determine the density of liquids.
3.When the body is immersed partially or completely in fluid it experiences and upthrust or buoyant force which is equal to the weight of the fluid displaced by the body.The weight of the body decreases due to the buoyant force acting on the body when immersed in a fluid.In other words, a body loses its weight, when immersed completely or partially in a fluid. The loss of weight of a body in a fluid is equal to the upthrust or buoyant forces.
The upthrust or buoyant forces= weight of fluid displaced by a body= weight of air- weight of body in fluid.


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